The Department of Commerce, specifically the National Institute of Standards and Technology (NIST), has issued a Sources Sought Notice for Mid-IR Optical Frequency Comb Systems to support its CHIPS Metrology Program's Grand Challenge 1. NIST requires three systems for applications in broadband spectroscopy, spectral reference databases, and new laser diagnostics in semiconductor processes, along with an additional system to fill a critical gap in long-wave infrared spectroradiometry and molecular spectroscopy for the space, defense, and satellite industries. Interested vendors are invited to provide information regarding their capabilities, including product specifications, customization options, and available services, while ensuring that proprietary information is not disclosed. Responses should be submitted via email to Forest Crumpler at forest.crumpler@nist.gov, as NIST seeks to gather market insights to inform future procurement decisions.